2020
DOI: 10.1590/0102-7786351004
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Avaliação do Impacto de Secas Severas no Nordeste Brasileiro na Geração de Energia Elétrica Através do Modelo Newave: Projeção das Energias Afluentes e Armazenadas

Abstract: Resumo Em situações críticas decorrentes de níveis baixos dos reservatórios das hidrelétricas, o controle do setor elétrico brasileiro é feito com base em planejamento hidrotérmico que dependem das vazões afluentes futuras às Usinas Hidrelétricas (UHEs). As incertezas hidrológicas são consideradas por meio de cenários sintéticos de sequências de energias naturais afluentes às sub-regiões. Dois modelos computacionais são usados para otimizar o sistema: o NEWAVE (médio e longo prazo) e o DECOMP (curto prazo). O … Show more

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Cited by 5 publications
(3 citation statements)
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“…Although the country then had a broader and more well-structured thermoelectric park than the one existing at the beginning of the 2000s, the significantly low level of reservoirs in the main Brazilian hydroelectric plants, even lower than the levels observed during the 2001 crisis, caused the implementation of a new electricity rationing scheme to be considered probable, or even inevitable, by many professionals in the area (Abbud, 2014;Rochas, 2014). The fact that the Marginal Operating Cost (CMO) has exceeded the Deficit Cost at some points throughout the years 2014 and 2015 (Vilar et al, 2020) reinforces the understanding that the electricity sector went through an extremely unfavorable situation in the aforementioned biennium 5 .…”
Section: Discussing the Signs Of Vulnerability Observed Within The El...mentioning
confidence: 93%
See 1 more Smart Citation
“…Although the country then had a broader and more well-structured thermoelectric park than the one existing at the beginning of the 2000s, the significantly low level of reservoirs in the main Brazilian hydroelectric plants, even lower than the levels observed during the 2001 crisis, caused the implementation of a new electricity rationing scheme to be considered probable, or even inevitable, by many professionals in the area (Abbud, 2014;Rochas, 2014). The fact that the Marginal Operating Cost (CMO) has exceeded the Deficit Cost at some points throughout the years 2014 and 2015 (Vilar et al, 2020) reinforces the understanding that the electricity sector went through an extremely unfavorable situation in the aforementioned biennium 5 .…”
Section: Discussing the Signs Of Vulnerability Observed Within The El...mentioning
confidence: 93%
“…However, in a scenario of abrupt climate changes may suffer volatility in its generation capacity, corroborating the instability of the electricity sector and affecting the country's economic and social development. In such context, the analysis of energy planning can be considered of utmost importance within the federal government's agenda to guarantee energy sovereignty and maintain sustained growth (Simões e Rovere, 2008;Vilar et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…Esta constatação é particularmente importante tendo em vista as implicações em setores importantes da cadeia econômica como o setor elétrico e o agronegócio, por exemplo, presentes na região em estudo. Anos seguidamente secos, além de comprometer a estabilidade fluviométrica necessária à geração de eletricidade por usinas hidrelétricas, como observado por Vilar et al (2020) e Silva et al…”
Section: Avaliação Do íNdice De Anomalia De Chuvas (Iac)unclassified